I have one of these, it was inexpensive used, and the view is pretty detailed, even barlowed, but the FOV is narrow compared to designs like Plossls, $Naglers$, etc.

I use it for planets, but use other eyepieces for wider field views like clusters/ Andromedia, etc..

Check out www.excelsis.com and go to the eyepiece review section.

Or go here to see some inexpensive EPs:

http://www.siebertoptics.com

(I have no affiliation to either site - please don't blame me if you don't like what you read or buy!)

Joe